Pipe.



lCE.

ROBERT A. HAMILTON, 0F Y, N. Y

PIPE.

Specification of` Letters Patent.

Patented Aug. 20, 1918.

Application filed August 3, 1917. Serial No. 184,217.

To all whom t may concern:

Be it known that I, RoBEn'r A. HAMILTON, a citizen of the United States,a resident of New York, in the county and State of New York, have made acertain new and useful Invention in Pipes, of which the following is aspecification.

This invention relates to a smoking pipe.

The object of the invention is to provide a simple and eliicientstructure of pipe which is economical to manufacture, and which isdesigned to prevent the mixture due to the saliva of the smoker fromreaching the` tobacco being consumed.

Further objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination,location, and relative arrangement of parts, all as will be more fullyhereinafter set forth, as shown by the accompanying drawings, andfinally pointed out by the appended claim.

Referring to the drawing Figure l is a view in elevation and partly insection of a pipe structure embodying my invention.

Fig. 2 is a top plan view of the bowl portion of the same.

Figs. 3 and l are sectional views of modified structures of pipe bowlsembodying my invention.

Fig. 5 is a view of the tube connecting the bowl and stem, detached fromthe pipe.

The Isame part is designated by the same reference numeral wherever itappears throughout the several views.

Broadly my invention consists in preventing any mixture from the mouthof the smoker from reaching the tobacco, thereby at all times insuring aclean dry smoke and preventing the liquid mixture or nicotin fromreaching the smoker. I accomplish this by providing an exterior passagefrom the pipe bowl to the stem, which passage is substantially U-shapedand inverted, thereby securing a longer travel of the smoke to thesmoker, and at the same time bringing the smoke during its travel to theexterior of the pipe, thus tending to cool the smoke before it reachesthe smoker.

Referring to Fig. 4 as illustrative of the principle of my invention thestem is indicated at l, which communicates by the pas sage 2 to the bowl3 of the pipe. The pas! sage 2 is closed to the bowl B of the pipe. Apassage 4, however, is bored to the passage 2 through the pipe ofsuiicient size to allow one end of a substantially U-shaped tube t to besnugly received therein, and the other end of the tube extends over theedge of the bowl 3 down into and at the bottom thereof as clearly shown.Thus it will be seen thatJ all smoke will be drawn through the tube baround the exterior of the pipe bowl into the passage 2 and thus throughthe stem l to the smoker. `While it is evident that with thisconstruction the necessity for cleaning the pipe is greatly reduced, ifnot entirely eliminated, any saliva that may collect in the passage 2may be readily drained by removing the tube 5 out of the hole 4. At thesame time if necessary the tube 5 may be readily cleaned in anydesirable or suitable manner.

A special feature of my present invention is the fact that pipes alreadyin use may be readily modified to incorporate therein the feature of myinvention. For example, and referring to Fig. 1, all that is necessaryto convert the pipe shown therein, which is a usual well knownconstruction, is to plug up the passage 2 leading into the bowl 3 withany suitable material as indicated at 6, and bore a hole 4: tocommunicate with the passage 2 to receive the tube 5, and 'therebyestablish communication between the passage 2 and the bottom of thebowl. Another simple arrangement is shown in Fig. 3 wherein the bottomof the bowl where the passage 2 communicates with the bowl 3 may befilled with any suitable substance such as a cement mixture indicated at7 thereby forming a new bottom for the bowl. In this instance, as in thestructure shown in Fig. l, the hole 4 is bored to receive the end of thetube 5 as will be readily understood.

While I have shown and described my invention as applied to variousforms of pipes it will be readily understood that it can be employed inany form of pipe, either straight stem as indicated vin Fig. 4, orcurved stem. as indicated in Fig. l; likewise many modifications andchanges will readily occur to those Vskilled in the art withoutdeparting from the spirit or scope of my invention as defined in theclaim, therefore, what I claim as new and useful, and of my owninvention, and desire to secure by Letters Patent, is

In a pipe the combination with a stein and n bowl, a. substantiallyU-shaped tube in.- verted over the edge of said bowl with one endthereof inserted in the passage in the stem und the other end thereofprojecting my hand on this 18th day of July, A. D. 1917.

ROBERT A. HAMILTON.

oyiel of this patent may be obtained Lor tive cent; each, by addressingthe Commissioner of Patenti,

' Washington, D. C.

